Improvement in grates



H.-SWARTOUT &'A. L. WHEDON.

Grate.

N0. 160,553. 'Pate nted March 9,1875.

THE GRAPHIC GOTHDTGrLITH-SQEM PARK Pl-ADEN-Y.

UNITED STATES PATENT Orrrcn.

JOHN H. SWARTOUT AND ALBERT L. WHEDON, OF GEDDES, NEW YORK.

IMPROVEMENT IN GRATES.

Specification forming part of Letters Patent No. 160,553, dated March 9, 1875 applioatirn filed October 30, 1874.

To all whom it may concern:

Be it known that we, JOHN H. SWARTOUT and ALBERT L. WHEDON, of Geddes, Onondagacounty, New York, have invented an Improvement in Grates for Stove, Furnace, and other Fire-Chambers, of which the following is a specification:

This invention refers'to the construction of movable grates for stoves, furnaces, and the like, by which they are more economically made and adapted to any size or form of horizontal profile of the fire-chamber.

The construction is as follows, referring to the accompanying drawing, in which Figure 1 is a top view. Fig. 2 is a section on line 00 m of Fig. 1. Fig. 3 is the center bar ing ends of the supporting-bar 0!, rolled to fit the hole 0, will have a bearing of proper shape to rock the grate on without anycost of swaging or forging, it being ready for use when out to the proper length. The grate-bars a are of proper length to fit the space they are to occupy, which may be varied according to the irregularities of the fire-chamber.

It will be noticed that the supporting central bar 01 is entirely shielded from the fire by the projections b, which cover it on top, and there maybe a space left in the grate-bars below the opening 0, as seen in Fig. 2, to admit the air from below to keep it cool.

Having thus fully described our improved grate, We claim- 1. The series OI grate-bars a of irregular lengths, in combination with the semicircular supporting-bar d, constructed and arranged as and for the purposes specified.

2. The air-space 0, below the openings din the grate-bars a, for the purpose set forth.

JOHN H. SWARTOUT. ALBERT L. WHEDON.

Witnesses:

PATRK. GoNBoY, GEO. J. OHAMBERLIN. 

